and by conrad prebys and debbie turner. and by the following... and by: and by... paris, budapest, st. petersburg, beijing. for 15 years, viking river cruises has transported travelers to another world, a world of dramatic landscapes, majestic castles and remarkable characters, all brought to life onboard a modern river cruise vessel, so travelers can spend less time getting there and more time being there. viking river cruises, proud sponsor of masterpiece. visit us at pbs.org/masterpiece to watch video and explore features, and follow us on facebook and twitter. ithis program is available on blu-ray and dvd. to order, visit shoppbs.org or call us at 1-800-play-pbs. captioned by media access group at wgbh access.wgbh.org test test test test test test test test test test preelt wolf, wolf, >> rose: welcome to the program. we begin this evening with a man that time magazine called the sheriff of wall street, he is a u.s. attorney for the southern district of new york, preet bharara. >> there are some people very arrogant and some people who think they are above the